Electrofluid-pressure apparatus.



G. R. DAELLENBAGH.

ELEGTROFLUID PRESSURE APPARATUS.

urmoumu FILED JULY 16, 1909.

96,4538 Patented Aug. 23, 1910.

2 SHEETS-SHEET 1.

C. R. DAELLENBACH.

ELEGTROFLUID PRESSURE APPARATUS.

APPLICATION FILED JULY 16, 1909.

Patented Aug. 23, 1910.

2 SHEETS-SEEIIT 2.

1 Adj/M21}! cAm. a. DAELLENBAGH, or BnAnnocK, PENNSYLVANIA.

ELECTROFLUID-PRESSURE APPARATUS.

Specification of Letters Patent.

Patented Aug. 23, 1910.

Application filed July 16, 1909; Serial No. 508,084.

To all whom it may concern:

Be it knownthat I, CARL R. DAELLEN- BAoH, citizen of the United States,residing at Braddock, in the county of Allegheny and State ofPennsylvania, have invented new and useful Improvements inElectrofiu-id-Pressure Apparatus, of which the following is aspeclfication.

My invention pertains to electro fluidpressure apparatus; and itcontemplates the provision of a sim la and reliable apparatus of thekind state designed more particu- .larly for use in connection with theoperation of railways, and adapted for actuating signals, .0 cratingwhistles or gongs, working thrott e valves or throwing switches or anyother devices that are to be moved by a person located at a distancefrom the same.

The invention also contemplates the rovisionof an apparatus characterizeas stated-and constructed in such manner that by a single movement ofthe controlling element, the fluid under pressure maybe su 'plied to andcut off from the device to e actuated a number of times in succession.

Other objects and advantages of the invention will be fully understoodfrom the following description and claims, when the same are read inconnection with the drawings, accompanying and forming part of thisspecification, in wh1ch:

Figure 1 1s a view, partly in section and partly in elevation of acomplete apparatus constructed in accordance with my invention. Fig. 1*is a sectional view showing a fluid-pressure valve designed moreparticularly for use when the fluid-pressure is to act directly againsta whistle or other device to be actuated. Figs. 1 and 1 arecross-sections of the piston valves N and N, respectively. Flg. 2 is asection, on an enlarged scale, taken through the casing of the circuitmaking and breaking device comprised in my improvements. Fig. 3 is aplan view showing the hand lever of the said circuit making and breakingdevice or controller.

Referring by letter and numeral to the said drawings, and moreparticularly to Figs. 1, 2 and 3, thereof: A is a cylinder having apiston B movable therein; the said piston being designed to be connectedin any manner consonant with the purpose of my invention to a device tobe actuated.

C C are electro-magnets disposed at one side of the cylinder A.

D is a rock-shaft mounted in a bracket arm E on the cylinder A andhaving an armature F arranged in proper relation to themagnets C, andalso having an arm Gr disposed at a rightangle to the said armature, andH is a valve casing, disposed, by

reference, at one end of the cylinder A and ormed integral therewith.The said valve casing is provided at its 0 posite ends with plug-likeheads I and 5 and in it are ormed a chamber K and a sub-chamber L;

the said sub-chamber being arranged at the end of the chamber K remotefrom the head I, and being smaller in diameter than the chamber K inabout .the proportion illustrated. It will also be noted by reference toFig. 1 that the valve casing H is provided with a port a effectingconnection between its chamber K and the interior of the cylinder A, aninduction port I) communicating with the chamber K and designed to beconnected through a pipe 0 with a source of fluid pressure supply, aport d designed to exhaust fluid under pressure from the chamber K, anda conduit or passage 6 communicating with and extending intermediate thesupply port I) and the sub-chamber L.

Extending longitudinally through and movable rectilinearly in the casinghead I is a valve M, headed at its inner end and suitably connected atits outer end to the arm G, and movable in the casing H is a pistonvalve N which, as clearly shown in .Fig. 1, comprises a chambered headf, a head 9 and an intermediate reduced portion h, all movable in thechamber K, and an end portion i, of small diameter as compared with theheads 1 and g, and arranged and movable in the sub-chamber L. The valveN is also provided with a longitudinal central passage j which extendsfrom the chamber in the head f to the opposite end of the valve. See inthis connection the dotted lines in Fig. 1.

By virtue of the construction thus far described it will be manifest.that when-the parts are in the positions shown in Fig. 1 and an adequate.supply of fluid pressure is maintained in the pipe 0, the parts will bemaintained in such positions so long as the valve M is not opened. When,however, the electro-magnets C are energized to attract the armature Fthereto, it will be seen that the valve M will be moved inwardly, andthat the accumulated pressure in the, chamber K at the left of the valveN will pass out through the enin scenes in the head I and the recesses min v ve whereupon the fluid pressure acting through the passage 1;,which is larger than the valve passage 7', will press the valve N towardthe left to enable the valve head 9 to close the port at, and the valvehead to overrun the ort b and efi'ect communication between sai port 6and the port a, so as to permit fluid under ressure to pass directlyfrom the source or supply through the chaber K and the port a, and byacting against the piston B to move the said piston in one direction. Itwill also be understood that the piston B will be maintained in theposition to which it is moved so long as the electro-magnets C areenergized. When, however, the said electro-magnets C are deenergized,and the armature lF drops awa therefrom, it will be seen that the valvewill be closed, and that consequently the fluid pressure passing fromthe port I; through the casing passage e, the sub-chamber L and thevalve passage j, will accumulate in the chamber K at the left of thevalve, and by reason of the head f being larger in diameter than the endportion 2' of the valve, will move the valve toward the ri ht until thevalve head 9' passes beyond an opens the ort d and the valve head frests over an closes the port I). At this time the port a is open throuh the chamber K to the exhaust port 01, and consequentl the fluidpressure behind the iston 1B is enabled to pass out of the cylin er Aand permit movement of the piston in the direction opposite to thatfirst stated. From this it follows that by alternately energizing anddeenergizing the electro-magnets C the piston 18 may be reciplrocated toactuate a semaphore or any 0t er device to be moved an with which thepiston may be connected.

In Fi Tl I illustrate a modified valve casing and valve N designed foruse when the fluid pressure is to be employed to act directly a amst thething or device to be actuated, such, for instance, as a whistle. Byreference to said figure, it will be seen that P is a pipe connectedwith the casing H and designed to lead to the whistle orother device tobe actuated, and that the easing H is provided with a chamber K, a comaratively small sub-chamber L, and a hea I designed to receive a valveM, which valve M is adapted to be controlled and moved by theelectro-mechanical means before described in detail. It will also beobserved by reference to Fig. 1*- that the casing H is provided with aport d between the chamber K and the i e P, and a port 6 between thechamber l and a pipe 0, designed to lead from a suitable source offluidressure supply. The valve N of the modi ed construction is providedwith a chambered head i, a head 9', an intermediate portion h, and anend portion 2'; and it w1ll also be noted thatt e valve has alongitudinal central passage 9" extending from the chamber in the head fto the smaller end of the valve, and that a port r, formed in theintermediate portion 72. of the valve, edects communication between thesaid assage j and the chamber K. Thus it wil be understood that whenadequate pressure is maintained in the pipe 0, the parts will beretained in the ositions shown 1n Fig. l so long as thava ve M isclosed.

en, however, the valve M is moved inwardly to open the same, theaccumulated pressure wil escape from the chamber K at the left of thevalve, whereupon the pressure gathering in the sub-chamber L will movethe valve toward the left, this because the connection between thepassage 3" and the chamber in the head f is contracted as indicated bya. The said movement of valve N toward the left will open the port 01 tothe port I) and ermit fluid ressure to pass from the port through tochamber K to and through the port at to the pi e P. It will also benoted that when the va ve M is closed the pressure accumulating in thechamber K at the left of the valve will, by acting against the head f,overcome the pressure in the sub-chamber L and move the valve to theposition'shown, whereupon communication between the chamber K and theport d will be closed.

It will be gathered from the foregoing the form of a circuit maker andbreaker.

When the said controller U is operated, the electro-magnets C areenergized and deenergized as before described; it being understood thatthe said controller will be located at a distance from the set or setsof electro-magnets with which it is arranged in circuit, so that aperson located at a distance from the fluid pressure mechanism mayeffectually control the operation of the latter.

In order to sound an alarm in the event that there is no fluid-pressureto move the piston B when the described electric circuit is completed bythe controller U, I rovide the means shown at the right of which meanscomprises a bracket t, a terminal u, and a spring terminal '0; the saidterminals u and '0 being arranged in a normally open electric circuitwith a source of electric energy w, andan electric bell or otherelectric signal at, and the spring terminal a being arranged in the pathofmovement of the armature F, so that whenthe said armature F isattracted to the magnets O, the electric circuit last described wlllbehere be noted that the sub-si electro-mechanical device may be used inlieu of the bell or signal :11, without involving departure from thescope of my mvention as defined in the claims appended.

In the preferred embodiment of my invention the controller U isconstructed in the manner best shown in Figs. 2 and 3- that is to say,it comprises, a casing 1, a

spring terminal 2 arranged in and connected to but insulated .from thecasing 1 and con: nected electrically through a suitable binding post 3with one of the poles of the source of electric energy T, a springterminal 4,

arranged opposite the terminal 2 and con nected to but insulated fromthe casing 1 and connected through a binding post 5 with the otherpoleof the source of electric energy T, a bell-crank 6 mounted in the casingand having a lower arm adapted to cooperate with the spring terminal 4,and also having its upper arm connected with a tractile spring 7 formoving it in the direction indicated by arrow in Fig. 2, suitable clockmechanism 8 arranged in the casing and having a spindle 9 and fan blades10 thereon, and also having a spring 11 and a train 'of gearing 12intermediate the same, and the spindle9, a wheel 13 connected with thesaid spring 11 and adapted when moved in one direction to put the spring11 under tension, and having a plurality of peripheral protuberances 14,and also having a lateral projection 15, a lever 16 movable about thesame center as the wheel 13, and having an arm connected with a tractilespring 17 and adapted to engage the spindle 9, and also having anotherarm on which is a lateral projection 18 to be engaged by the peripheralprojection 19 of the wheel 13, and a hand lever 20.having an exteriorarm 20* movable in front of the dial 21 of the controller U, and alsohaving anIarm 20 for cooperating with the spring terminal 4 and the bellcrank 6, and a shorter arm 20 for cooperating with the lateralprojection 15 of the wheel 13.

In the operation of the controller-U it will be understood that when thehandle 20 is moved in the direction indicated by arrow in Fig. 2, thearm 20 cotiperating with the lateral projection15 will move or turn thewheel 13 a corresponding distance and by so doin will ut the sprin 11under tension. It w1ll also understoo that on said movement of thehandle or hand lever 20 in the direction stated, the arm 20 will permitthe upper arm of the bell-crank 6 to swing inwardly into the path of thefan 10, so as to hold said fan against rotation until the hand lever isreturned to the zero position shown in Fig. 2, when the arm 20cofiperating with the lateral projection 6 on bell-crank 6, will movethe bell-crank'to carry the upper arm thereof out of the way of the fan10. On the movement of the hand lever 20in the direction indicated byarrow in Fi 2,

a number of the protuberances 14 on w eel 13 will be carried beyond theend of the terminal spring 2; the said number of protuberancescorresponding to the number to which the ointer arm 20 of the hand lever20 is move Then when the hand lever 20 is released and the spring 11turns the wheel 13 and the hand lever 20 in the direction opposite tothat indicated by arrow, it will be noticed that the circuit will bemadeor completed and broken a number of times corresponding to the numbervof protuberances that were moved beyond the end of the terminal 2 inthe first instance, the circuit being from the terminal 2 through ther0- tuberances 14 of the wheel, the said w eel and the arm 20 of thehand lever 20 to the terminal 4. By reason of the before describedbell-crank 6, the wheel 13 cannot turn by the action of the spring 11until the hand lever 20 is returned to the position where its pointerarm 20 is directed to zero. At that time, however, the wheel 13 turnstoward the right and makes and breaks the circuit until the peripheralprojection 19 on said wheel brings up against the lateral rojection 18on the lever 16, when the w eel will be stopped in a cushioned mannerand at the same time the lever 16 will be moved, against the action ofthe tractile spring 17 against the spindle 9 to brake the latter.

It will be gathered from the foregoing that when the pointer arm 20 ofhand lever 20 is moved to 4 on the dial of the controller U and thenreleased, the electric circuit will be made and broken. four times andin consequence the electro-magnets C'will be encr- 'zed and deenergizedfour times, and the piston B will be moved up and down a correspondingnumber of tlmes. When the pointer arm 20 is moved to 1 on the dial ofthe controller U as shown in Fig.1 and then released, the circuit willobviously be made and broken but once.

The construction herein illustrated and described constitutes the bestpractical embodiment of my invention that .I have as yet devised, but itis obvious that in the future practice of the vinvention such changes ormodifications may be made as do not involve departure from the scope ofmy invention as defined in the claims appended.

Having described my invention, what I claim and desire to secure byLetters- Patent, is:

1.. in an apparatus for the purpose de scribed, the combinationwith avalve casing having. a chamber, an induction port and an eduction portfor fluid under pressure connected with said chamber, an exhaust portalso connected. with the chamber, and a com- .paratively smallsub-chamber; of a piston valve having heads movable in the chamber and areduced portion movable in the subchamber and also having a longitudinalpassage connecting the chamber with the subchamber, and means forconducting fluid under pressure from the induction port to theysub-chamber, a normally closed valve controlling the exhaust port of thechamber, and means for opening said valve.

' 2. In an apparatus for the purpose described, the combination with avalve casing having a chamber, an induction port and an eduction' portfor fluid under pressure con- :nected with the side of the said chamber,an

exhaust port-leading from the chamber at one end thereof, and a comaratively small sub-chamber at the opposite end of the chamber; of apiston valve havin heads movable in the chamber of the casing and alsohaving a reduced portion movable'in the sub-chamber thereof, means forconducting fluid under pressure from the induction portto thesub-chamber, means for con- .ducting fluid under pressure from'- theinduction port to the chamber, a normallyclosed valve controlling theexhaust port of the chamberand having a stem extending outside thecasing, an electro-magnet, a rockshaft having an armature movable towardand from the same and also having an arm connected to the stem of theexhaust valve, a

controller, and a source of electric energy arranged in a normally opencircuit with the electro-magnet and the controller.

3. An apparatus for the purpose described, comprising a valve casinghaving a chamber, an induction port and an eduction scarce said chamber,an exhaust port also connected with the chamber, and a comparativelysmall sub-chamber; a piston valve havin heads movable in the chamber anda reduce portion movable in the sub-chamber and also having alongitudinal passage extending between and connecting the chamber andthe sub-chamber, means for conducting fluid under pressure from theinduction port to the said sub-chamber, anormally closed valvecontrolling the exhaust port of the chamber, and means for opening saidvalve.

4. In an apparatus for the purpose described, the combination with avalve casing having a chamber, an induction port and an eduction portfor fluid under ressure connected with the side of the said chamber, anexhaust port leading from the chamber at one'endthereof, and acomparatively small sub-chamber at the opposlte end of the chamber; of apiston valve havin heads movable in the chamber of the casing and alsohaving a reduced portion movable in the sub-chamber thereof, means forconducting fluid under pressure from the induction port to thesub-chamber, means for conducting fluid under pressure from theinduction port to the chamber, a normally closed valve controlling theexhaust port of the chamber and having a stem extending outside thecasing, an electro-magnet, a rock-shaft having an armature movabletoward and from the same and also having an arm connected to the stem ofthe exhaust valve, a controller, a source of electric energy arranged ina normally open circuit with the electro-magnet and the controller, andnormally sepa rated terminals arranged in a normally open electriccircuit with a source of electric energy and an electrical device to beactuated; one of the said terminals being movable by the armature intocontact with the other terminal.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

CARL R. DAELLENBAOH. Witnesses: JOHN M. CLIFFORD, H. C. RBLEA.

